Device for human locomotion



R. G. HALL.

DEVICE FOR HUMAN LOCOMOTION. APPLICATION FILED FEB. 8' I918.

1,323,629 Patented Dec. 2,1919.

WITNESS: IN VEN TOR.

A TTORN "WET ROBERT G. HALL, OF EORTLAND, OREGON.

DEVICE FOR HUMAN LOCOMOTION.

Specification of Letters Patent.

Patented Dec. 2, 1919.

Application filed February 8, 1918. Serial No. 216,382

To all whom it may concern:

Be it known that I, Ronnnr'il-lALL, a citizen of the United States,residing in the city of Portland, county of Multnoniah, and State ofOregon, have invented certain new and useful Improvements in Devices forHuman Locomotion, of which the following is a specification.

In the use of a crutch, I have discovered that by placing a hand grip toone side, forwardly or rearwardly, of the median line of the crutch,that when weight is placed thereon, it tends to throw the upper end ofaction is particularly true where the crutch structure is provided witha rocker element at its lower end.

I have illustrated my invention in the accompanying sheets of drawings,which I will now describe.

Figure 1 is a side elevation of a crutch pro vided with a rockerelement, with an auxiliary handle.

Referring now more in detail to the drawings, I will describe theapplication of my invention to a crutch, as shown in Fig. 1. Attached tothe lower end of the crutch C, is a rocker element 5, secured theretoand braced by means of brace members 6, 6.v The curvature of the rockermember 5 is taken from. the upper end of the crutch as the center, andthe crutch becoming the radius.

This crutch is also provided with auxiliary handle H on its front edge,which acts, when the weight is thrown thereon, to assist in forcing thebody forwardly. lhis crutch is adapted for use on rough ground, or ingoing up a hill, or against the wind.

I aware that changes can be made in my invention as here embodiedwithout departing from the spirit thereof, and I do not, therefore,limit the invention except as I may be limited by the hereto appendedclaims.

I claim:

1. A crutch of the character referred to comprising a crutch structureprovided at its lower end with a rocker element and providedintermediate its ends with a hand grip extending sulficiently to oneside of the median line of said crutch structure, whereby weight placedon said handle tends to rock the crutch in that direction.

2. A crutch structure having a hand grip positioned laterallysuill-ciently to one side of the median line of said crutch structure sothat all the weight placed on said handle is to one side of said medianline, whereby to cause the upper end of said crutch to be moved towardthe side on which said hand grip is located.

Signed at Portland, Multnomah county. Oregon, this 29th day of January,1918.

ROBERT G. HALL.

In presence of C. T. POTTER, L. T. NEWTON.

